There was a 'Ralph' type character, too, who's name I believe was "Steve?" He was more recognizable as an actual character as opposed to an extra than the "Jenny" character.
Steve Lombard was a Bronze Age character in the comics. Like Ralph, he was a real jerk most of the time. For a period of time, it was required in every issue that he play a practical joke on Clark, and that Clark would get back at him by the end of the issue, often via surreptitious use of his superpowers.